Jonathan Steinberg is an American financial-services executive, entrepreneur, author, and former financial editor. He is the founder and chief executive officer of WisdomTree, Inc., an asset-management company widely associated with exchange-traded funds, exchange-traded products, investment models, and digital financial services.
Before developing WisdomTree’s investment business, Steinberg founded Individual Investor Group, Inc. and served as its chairman and CEO. He also worked as editor-in-chief of Individual Investor and Ticker magazines between 1998 and 2004. Earlier in his career, he was an analyst in the mergers and acquisitions division of Bear Stearns.
Steinberg’s career is notable for its progression from investment banking and financial publishing to index development and asset management. Outside his corporate role, he is known as the husband of financial journalist Maria Bartiromo and the son of financier Saul Steinberg.
Who Is Jonathan Steinberg?
Jonathan Steinberg is the founder and CEO of WisdomTree, a financial-services company known for exchange-traded products and index-based investment strategies. He previously led Individual Investor Group and edited Individual Investor and Ticker. Steinberg attended the Wharton School and has been married to financial journalist Maria Bartiromo since 1999.
Also Read: Captain Steve Biography: TikTok Star, Airline Pilot, Age, and Aviation Career
Commonly Searched Questions About Jonathan Steinberg
What is Jonathan Steinberg known for?
Jonathan Steinberg is best known for founding and leading WisdomTree. He helped develop the company’s proprietary index methodology and guided its move into exchange-traded funds. His earlier work included investment banking at Bear Stearns, financial publishing through Individual Investor Group, and editorial leadership at two investment magazines.
Is Jonathan Steinberg the founder of WisdomTree?
Yes. WisdomTree identifies Jonathan Steinberg as its founder and chief executive officer. Corporate filings state that he has served as CEO of the company or its predecessor since October 1988. WisdomTree later developed into an asset manager and launched its first family of exchange-traded funds in June 2006.
Who is Jonathan Steinberg’s wife?
Jonathan Steinberg is married to Maria Bartiromo, an American financial journalist, television presenter, and author. They married in 1999. Bartiromo has built an independent career covering financial markets and business news, while Steinberg’s professional work has focused on financial publishing, investment products, and corporate leadership.
Where did Jonathan Steinberg study?
Jonathan Steinberg attended the Wharton School at the University of Pennsylvania. WisdomTree’s official biography and SEC filings use the word “attended” rather than stating that he earned a degree. Therefore, descriptions identifying him as a Wharton graduate should be treated cautiously unless supported by stronger documentation.
Who are Jonathan Steinberg’s parents?
Jonathan Steinberg is the son of the late financier and businessman Saul Steinberg and Barbara Herzog Steinberg. Saul Steinberg became prominent through businesses including Leasco Data Processing Equipment Corporation and Reliance Group. Jonathan later established a separate career in financial publishing, index development, and asset management.
Jonathan Steinberg Profile Summary
| Detail | Information |
|---|---|
| Full name | Jonathan Steinberg |
| Also known as | Jono Steinberg |
| Birth year | 1964, according to public financial filings |
| Nationality | American |
| Profession | Business executive, entrepreneur, author, and former financial editor |
| Current position | Founder and CEO of WisdomTree, Inc. |
| Industry | Asset management and financial services |
| Former company | Individual Investor Group, Inc. |
| Earlier employer | Bear, Stearns & Co. Inc. |
| Former editorial roles | Editor-in-chief of Individual Investor and Ticker |
| Education | Attended the Wharton School, University of Pennsylvania |
| Published book | Midas Investing |
| Spouse | Maria Bartiromo |
| Marriage year | 1999 |
| Father | Saul Steinberg |
| Mother | Barbara Herzog Steinberg |
| Notable board role | Director of Fnality International Limited |
| Known for | Developing WisdomTree and its proprietary index methodology |
Early Life and Background
Jonathan Steinberg was born into a family with established connections to American business and finance. His father, Saul Steinberg, was a financier and corporate executive who became prominent during the second half of the twentieth century. His mother, Barbara Herzog Steinberg, was Saul Steinberg’s first wife.
Public records provide limited information about Jonathan Steinberg’s childhood, early schooling, and personal interests. For that reason, claims about his upbringing or the exact influence of his father should not be presented as established fact.
His family background may provide context for his early exposure to business, but it does not fully explain his later career. Steinberg built his professional record through investment banking, entrepreneurship, publishing, index development, and the management of a publicly traded financial company.
Jonathan Steinberg’s Education
Steinberg attended the Wharton School at the University of Pennsylvania, an institution known for its business, economics, and finance programs.
Official WisdomTree biographies and SEC filings do not state that he completed a degree. They consistently say that he “attended” Wharton. This distinction is important because several secondary biographies describe him as a Wharton graduate without providing reliable evidence of graduation.
No extensive public information is available about his field of study, years of attendance, academic activities, or additional qualifications. A factual biography should therefore avoid assigning him a particular degree or graduation year.
His association with Wharton remains relevant because his later professional life has centered on financial markets, business strategy, investment products, and corporate management. However, connections between his education and specific business decisions should not be assumed without direct statements from Steinberg.
Early Career at Bear Stearns
Before becoming an entrepreneur, Steinberg worked at Bear, Stearns & Co. Inc. from 1986 to 1988. He served as an analyst in the investment bank’s mergers and acquisitions department.
The role placed him in a professional environment focused on corporate transactions, financial analysis, valuation, and strategic business decisions. It represented an early stage in a career that would later move beyond investment banking into publishing and asset management.
Steinberg left Bear Stearns to establish his own business. That move began a long period of executive leadership extending across several versions of the company that eventually became WisdomTree.
Individual Investor Group and Financial Publishing
Prior to establishing the modern WisdomTree investment business, Steinberg founded Individual Investor Group, Inc. He served as the company’s chairman and CEO and developed operations aimed at providing financial information to individual investors.
The company published Individual Investor and Ticker, two magazines covering investing, companies, financial markets, and related subjects. Steinberg served as editor-in-chief of both publications from 1998 to 2004.
These editorial positions gave him experience in communicating financial concepts to a public audience. They also placed him at the intersection of investment research, media, and consumer financial information.
His publishing career is an important part of his biography because WisdomTree did not begin simply as an ETF provider. Its development involved a broader corporate transition from investment-focused media into index creation and asset management.
Author of Midas Investing
Steinberg wrote Midas Investing, which was published in 1996 by Times Books, a division of Random House.
The book formed part of his work in financial communication during the Individual Investor era. It addressed investment-related ideas for a general readership and reflected his involvement in financial markets before WisdomTree’s ETF business was launched.
Although the book contributes to his public record as an author, it is not the main basis of his current professional profile. Steinberg is now more closely associated with WisdomTree, index methodology, exchange-traded products, and financial technology.
Also Read: Danielle Brandon Biography: CrossFit Career, Age, Instagram, and Fitness Journey
Founding and Developing WisdomTree
WisdomTree identifies Steinberg as its founder and CEO. Corporate filings state that he has served as chief executive since October 1988 and was chairman of the board from October 1988 to November 2004.
This timeline can be confusing because the modern WisdomTree investment platform developed from an earlier corporate entity. The business previously operated in financial publishing before shifting its strategy toward indexes and investment products.
Steinberg was closely involved in creating and developing WisdomTree’s proprietary index methodology. Rather than limiting its early products to traditional market-capitalization-weighted indexes, the company developed strategies based on measures such as dividends and company earnings.
WisdomTree launched its first 20 exchange-traded funds on June 16, 2006. The launch established the company as a participant in the expanding ETF industry and marked a major change from its earlier publishing operations.
Steinberg later served as WisdomTree’s president from August 2012 until September 2019 while continuing as CEO. Jarrett Lilien succeeded him as president and became the company’s president and chief operating officer.
WisdomTree’s ETF and Investment Strategy
WisdomTree became known for investment products that offered alternatives to conventional market-capitalization-weighted indexes. Its early funds included dividend-weighted strategies and international equity products.
Steinberg’s contribution is most directly documented through his involvement in the company’s proprietary index methodology and his long-term executive leadership. It would be inaccurate, however, to attribute every WisdomTree product or achievement to one person. Product development, regulatory work, distribution, research, and fund management depend on teams of specialists.
Under Steinberg’s leadership, WisdomTree expanded beyond its original US-listed ETFs. Its business came to include exchange-traded products, investment models, European operations, and other financial solutions.
The company’s history reflects a wider change in asset management. ETFs became increasingly important because they can provide tradable, transparent, and diversified market exposure. WisdomTree sought to distinguish itself through alternative index methodologies rather than competing only through conventional benchmark products.
Digital Assets and Financial Technology
More recently, WisdomTree has expanded its attention to digital financial infrastructure. Its initiatives have included digital asset-related products, tokenized assets, a consumer-facing digital wallet, and services developed for financial institutions.
Steinberg has spoken publicly at conferences about digital assets and blockchain-enabled finance. His interest in this area represents an extension of WisdomTree’s broader strategy rather than a complete departure from asset management.
Since May 2022, he has served on the board of Fnality International Limited, a UK-based financial-technology company. Fnality works on payment infrastructure designed for institutional financial markets.
This board position adds a financial-technology dimension to Steinberg’s career. It also corresponds with WisdomTree’s efforts to connect established investment products with newer forms of digital financial infrastructure.
Major Achievements and Recognition
Steinberg received the EY Entrepreneur of the Year 2015 New York Award. The recognition was connected to his record as an entrepreneur and business leader.
He also received ETF.com’s Lifetime Achievement Award for 2015. The award, presented in 2016, recognized his long-term contribution to the development of investment outcomes within the ETF sector.
In September 2025, Steinberg was named CEO of the Year at the Wealth Management Industry Awards. The award was associated with his leadership of WisdomTree and the company’s work in exchange-traded products, investment models, and digital platforms.
These awards provide evidence of industry recognition. They should not be interpreted as independent proof that every corporate strategy or product has been successful. Awards reflect the criteria and decisions of the organizations that present them.
Marriage to Maria Bartiromo
Jonathan Steinberg married Maria Bartiromo in 1999. Bartiromo is a financial journalist, television presenter, and author who became widely known for reporting from the floor of the New York Stock Exchange and hosting business-news programs.
Their careers share a connection to financial markets, but they work in different professional fields. Steinberg’s career centers on asset management, financial products, and corporate leadership. Bartiromo’s work focuses on journalism, broadcasting, interviews, and financial-news analysis.
Public interest in the marriage has resulted in Steinberg sometimes being described mainly as Maria Bartiromo’s husband. That description is accurate but incomplete. He had already established Individual Investor Group and developed a career in financial publishing before their marriage.
Reliable public sources confirm their marriage, but detailed information about their private relationship is limited. A responsible biography should avoid unverified claims about their domestic life, personal finances, or family decisions.
Jonathan Steinberg’s Parents
Steinberg’s father, Saul Steinberg, was an American businessman and financier associated with Leasco and Reliance Group. He became nationally known for major corporate transactions and attempted takeovers.
His mother, Barbara Herzog Steinberg, was Saul Steinberg’s first wife and the mother of his three older children, including Jonathan. She died in 1999.
Jonathan Steinberg’s relationship to Saul provides relevant family context, but their careers should not be treated as identical. Saul was associated with insurance, corporate acquisitions, and the financial conglomerates of an earlier period. Jonathan developed his professional identity through investment media, index-based products, ETFs, and financial technology.
Philanthropy and Public Engagement
There is limited authoritative public information about personal charitable foundations or major philanthropic programs established by Jonathan Steinberg. Without reliable documentation, it would be inappropriate to attribute particular charitable causes or donations to him.
His public engagement is better documented. WisdomTree’s corporate biography describes him as a frequent speaker at conferences concerning digital assets and blockchain-enabled finance. He has also appeared on financial television networks, including CNBC, Bloomberg, and Fox Business.
These activities reflect his role as a public representative of WisdomTree and a commentator on developments affecting asset management and financial technology. They should be distinguished from philanthropy, which is not extensively documented in his available official biography.
Public Perception and Common Misconceptions
Misconception: He is known only as Maria Bartiromo’s husband
Steinberg’s marriage to Bartiromo contributes to public interest in his personal life, but his career was independently established. He worked at Bear Stearns, founded Individual Investor Group, led financial magazines, and later developed WisdomTree’s investment business.
Misconception: He graduated from Wharton
Official corporate biographies say that Steinberg attended the Wharton School. They do not state that he graduated or received a degree. Using the phrase “Wharton graduate” without stronger evidence may therefore create an inaccurate impression.
Misconception: WisdomTree started as an ETF company in 1988
Corporate filings trace Steinberg’s CEO tenure to 1988, but the company’s earlier operations involved financial publishing. WisdomTree launched its first ETFs in 2006. The modern asset-management business emerged through a transition from the company’s previous activities.
Misconception: His net worth is publicly established
Various websites publish estimates of Steinberg’s wealth, but such figures are not the same as independently verified net worth. SEC filings may disclose compensation and company share ownership, but they do not reveal all private assets, debts, taxes, or financial obligations.
Misconception: He personally created every WisdomTree product
Steinberg is credited with helping create and develop WisdomTree’s proprietary index methodology. However, a global asset manager operates through teams covering research, portfolio management, technology, legal compliance, distribution, and corporate operations.
Privacy and Limited Public Information
Although Steinberg leads a publicly traded company, significant parts of his personal biography remain private.
His exact date of birth is not consistently presented in WisdomTree’s official biography. Public financial filings have identified 1964 as his birth year, while a 2025 proxy statement listed him as 60. Without an exact birth date, his precise current age should not be stated as certain.
Detailed information about his childhood, early schools, and Wharton studies is also limited. No verified graduation date or completed Wharton degree is listed in WisdomTree’s current executive biography.
His complete personal net worth is not publicly known. Executive compensation and shareholdings reported in regulatory filings provide only part of an individual’s overall financial position.
Limited information is also available about his private family life. These gaps should be acknowledged rather than filled with assumptions or claims taken from unsourced biography websites.
Legacy and Influence
Jonathan Steinberg’s main professional influence lies in the development of WisdomTree from an investment-publishing business into an international asset manager.
The launch of 20 ETFs in 2006 was an important point in that transformation. WisdomTree entered the market with fundamentally weighted and dividend-focused approaches that offered alternatives to traditional market-capitalization-weighted indexes.
Steinberg’s long tenure has given him a continuing role in the company’s strategic direction. His career has extended across print financial media, investment banking, exchange-traded products, index development, and digital financial services.
His legacy should be assessed through documented business developments rather than broad claims about personal innovation. WisdomTree’s growth, product history, proprietary methodology, international activity, and digital expansion provide measurable evidence of his professional influence.
At the same time, asset-management outcomes depend on market conditions, corporate governance, employees, partners, investors, and regulatory structures. Steinberg’s position is central to WisdomTree’s history, but the company’s development remains a collective institutional achievement.
Frequently Asked Questions
What does Jonathan Steinberg do now?
Jonathan Steinberg serves as the founder and chief executive officer of WisdomTree, Inc. He is responsible for the company’s strategic leadership and remains a member of its board of directors. His work covers asset management, exchange-traded products, investment models, and the company’s expansion into digital financial services.
Did Jonathan Steinberg earn a degree from Wharton?
A completed degree has not been confirmed in WisdomTree’s official executive biography or recent SEC filings. These sources state only that he attended the Wharton School at the University of Pennsylvania. It is therefore more accurate to describe him as having attended Wharton rather than calling him a graduate.
When did Jonathan Steinberg establish WisdomTree?
WisdomTree’s filings trace Steinberg’s leadership of the corporate entity or its predecessor to October 1988. However, the company originally operated in financial publishing and later changed its business direction. Its first family of 20 WisdomTree exchange-traded funds was launched on June 16, 2006.
What book did Jonathan Steinberg write?
Steinberg is the author of Midas Investing, published in 1996 by Times Books, a division of Random House. The book belongs to the earlier financial-publishing stage of his career, before WisdomTree became widely known as an ETF and asset-management company.
Is Jonathan Steinberg still married to Maria Bartiromo?
Public information continues to identify Jonathan Steinberg and Maria Bartiromo as married. They married in 1999. Bartiromo is known for her work in financial journalism and television, while Steinberg is primarily associated with WisdomTree and the asset-management industry.
Conclusion
Jonathan Steinberg is the founder and CEO of WisdomTree and a long-serving executive in the financial-services industry. He began his career as a mergers and acquisitions analyst at Bear Stearns before founding Individual Investor Group and entering financial publishing.
He served as editor-in-chief of Individual Investor and Ticker, wrote Midas Investing, and helped guide his company’s transition into index development and asset management. WisdomTree launched its first 20 ETFs in 2006 and later expanded into international exchange-traded products, investment models, and digital financial infrastructure.
Steinberg attended the Wharton School, is the son of financier Saul Steinberg and Barbara Herzog Steinberg, and has been married to financial journalist Maria Bartiromo since 1999. Information about his precise birth date, degree status, private finances, and personal philanthropy remains limited and should not be presented speculatively.
His documented professional significance comes from WisdomTree’s development, its alternative index methodologies, and his sustained leadership across several periods of change in financial media and investment management.
